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Touchscreen displays incorporating dynamic transmitters

Inactive Publication Date: 2012-08-30
PAYNE JONATHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each light beam is typically received at the other end of the display surface by a corresponding ‘receiver.’ When the screen is touched or otherwise contacted, the lines of site between specific light beams and their respective receivers may become obstructed.

Method used

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  • Touchscreen displays incorporating dynamic transmitters
  • Touchscreen displays incorporating dynamic transmitters
  • Touchscreen displays incorporating dynamic transmitters

Examples

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Embodiment Construction

[0056]Turning now to the drawings, systems and methods for implementing touchscreen displays, touch-pads, or touch-surfaces, utilizing a transmitter system that generates at least one light beam that dynamically scans above a surface of interest such that substantially all points in a region above the surface of interest are scanned from at least two different directions, a receiver system that receives the scanned light beams and detects breaks in the light beams, and a processor for processing related signaling in accordance with embodiments of the invention are illustrated. The transmitter system can utilize a dynamic transmitter or can utilize multiple dynamic transmitters. The light beams' scanning pattern may be configured so that a contacting member (a tangible object that is within sufficient proximity of the surface of interest) will inhibit light beam reception and thereby allow the location of the contact point (the spatial region at which a contacting member is within su...

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Abstract

Systems and methods for implementing touchscreen displays that utilize a transmitter system to dynamically scan at least one light beam across a surface of interest such that substantially every point in a region above the surface of interest is dynamically scanned by a light beam from two directions, a receiver system to receive and detect the at least one dynamically scanned light beams, and a processor configured to determine locations of contact are provided. The systems and methods may utilize a transmitter system that includes dynamic transmitters, which may be in the form MEMS micromirrors used in conjunction with infrared semiconductor lasers.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]The present application claims the benefit under 35 U.S.C. 119(e) of the filing date of U.S. Provisional Application Ser. No. 61 / 446,919 filed Feb. 25, 2011, the disclosure of which is incorporated by reference herein in its entirety.FIELD OF THE INVENTION[0002]The present invention generally relates to touchscreen displays and more specifically to touch screen displays utilizing infrared optical technologies.BACKGROUND[0003]Touchscreen displays are “electronic visual display[s] that can detect the presence and location of a touch within the display area.” (http: / / en.wikipedia.org / wiki / Touchscreen). They have become increasingly prominent in modern electronics as they provide for a highly effective and intuitive means of interacting with a device.[0004]Current touchscreen displays utilize any one of several technologies to perceive contact—those technologies can be broadly classified as infrared optical technologies and non-infrared-optica...

Claims

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Application Information

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IPC IPC(8): G06F3/042
CPCG06F3/0423
Inventor PAYNE, JONATHAN
Owner PAYNE JONATHAN